Switch.



H. N. MOTSINGER.

SWITCH. APPLICATION FILED MAR. 28, 190B.

Patented Oct. i9, 1909.

3 mn afar @v kuma c ,QM/ y UNITED snare .ar orme.

BONER N. MOTSINGER, OF PENDLETON, INDIANA, ASSIGNOR TO MOTSINGER DEVICEMFG'. CO., OF PENDLETON, INDIANA, A CORPORATION 0F I1910115.15125nSWITCH.

Speccation of Letters Patent.

rasanten-oct. 19,1909.

`Application led Ilarch 28, 1908. SerialpNo. 423,825.

To all 'whom 'it may concern: I

Be it known that I, HOMER N. MofrsiNenR, a citizenof the United States,residing at *Pendletom Ain the county of Madison and State of Indiana,have invented certain new and useful Improvements 'in Switches, of whichthe following is a specification.

The object of my invention is to provide a neat and eflicient switchmechanism by means of which proper connections may be readilyestablished between a generator, a storage battery, and a service lineso that the service line may be served either from the generator or fromthe battery or the battery maybe recharged by the generator.

The accompanying drawings illustrate my invention.

Figure 1 is a 'perspective view of my improved switch block with onedesirable form of switch pin therein; Fig. 2 a plan in partrialhorizontal section showing the form of pi in an intermediate position;Fig. 3 a sec ion on line 3 3 of Fig. 2 with the switchpin removed; Fig.4 a detailin partial axial section of the form of pin shown in Figs. 1

. and 2; Fig. 5 a similar view of another form body may be-formed of anydesirable ma-` such for instance as hard rubber.

lof pin; Fig. 6 a wiring diagram, and Fig.' 7 -another wiring diagram.

In the drawings 10 indicates the main body of myr improved switch block.This main terial, preferably a good insulating material Formed in oneface of the block 1() is a wide central pocket 11 and two narrowerpockets 12 and 13 which Hank the pocket 11.v Formed through body 10 atright angles with the pockets 11, 12 and 1'3, and intersecting the innerends thereof, is a passage 14. Mounted in pocket 11 is a iiexiblecontact member 15 which I prefeivto make with two points or fingersi and17. Mounted in pocket 13 is a flexible contact member 18 and mounted inpocket 12 is a flexible contact member 19, the points of the severalmembers 15, 18 and 19 being equally spaced from each other and eachhaving preferably upon its under side a small boss 20 for a purposewhichwill ap'- pear. Adapted to lit passage is a con nector orswitch-pin which in Figs. 1, 2 and 4, I show as comprising a centralinsulating stem 21 having at opposite ends metallic members 22 and 23which are electrically connected by a pin 24 which runs through theinsulating body 21.' Head 22 is pro-v vided with a pair of grooves 25and 26 and head 23 is provided with a pair of grooves 27 and 28 whichare spaced apart in pairs a distance equal to the distance between anytwo of the flexible terminals of the block. The two heads are so spacedthat grooves26 and 27 lie apart a distance equal to the distance betweenmembers 18 and 19.

In Fig. 5 I show a connector comprising a central metal member 30 havinggrooves 31 and 32, and this central member is flanked; at its ends by-insulator extensions 33 33 which are of such length that when the pinis pushed clear in from either side of block 10 the grooves 31 and 32will receive terminals 16 and 18 or terminals 17 and 19. y The switch isused in the following manner A generator 34 has its positive poleconnected by a wire 35 with the positive pole of a storage battery 36;wire 35 is also Vconnected' with the wire 37 of a service line;theopposite wire 38 of the service line is connected. to the plate 15which comprises the switch points 16 and 17; the negative side of thestorage battery is `connected by a wire 39 with switch point 18 and thenegative side of the generator is connected by a wire 40 with switchpoint 19.

The operation is as follows: Suppose that the switch pin shown in Fig. 4is used and -end 22 be inserted into passage 14 until the knobs 20 ofthe switch points 19 and 17 lie vin grooves 25 and 26. We have then acircuit established from the positive side of the generator through wire35, service wires 37 and 38, switch points 17, switch point 19 and wire40 to the negative side of the generator, and the service circuit isserved from the generator. In this position the switch points 16 and 18will lie upon the central insulating portion 21 ofthe pin and there willtherefore'be no completed circuit for the storage battery in eitherdirection. If the pin be pushed in farther so as to bring notch 26 intoposition opposite switch point 19, the notch 27vwill be brought oppositeswitch point 18 and there will then be 'established a charging circuitfor the storage battery beginning at the positive pole of the generator,thence through wire 35 of the positive side of the storage battery 36thence through wire 39, switch points 18 and 19 and wire .40 to thenegative sideof the enerator, and the storage battery will be c arged bythe generator. If now the shown in Fig. 5 may be used with the same'facility for establishing a connection be-' tween either the storagebattery or the generator on one side and the service line on the otherbut this piu is ,incapable of establishing a charging 4connectionbetween the storage battery andv generator. The bosses 2O snap into therespective grooves of the `switch-pin and thus serve to properlyposition the parts as soon as the switch-pin has been carriedapproximately to the desired position. A

The pin shown in Fig. 5 is more especially designed for use in a circuitlike that illus trated in Fig. Z '-where there are two-sources ofcurrent, 50 and 51, said two currents being connected by a Wire 52 withthe terminal l5 and the source 5.0 being connected by a Wire 53 withterminal 19 While source 51 is connected by Wire 54 with terminal 18,

the arrangement being such that by shifting the pin to bring notches 31and 32 into engagement With fingers 16 and 18 respectively, source 51will be placed -in the service circuit while by shifting the notches 81and 32 so as to bring them into alinement with fingers 19 and 17respectively the source 50 'will be in the service circuit:-

claim as my invention:-

1. A switch block having a plane face with three switch pockets t'ormedtherein, 'three terminals mounted one in each ot said pockets, a switchpin guide extending transversely through said block and through saidpockets, and a switch pin fitted in said guide and formed to connectsaid three terminals in pairs.

2. A switch block comprising a main body, three spring terminals themiddle one of which has two operative ends equally spaced from eachother andthe respective flanking terminals, and a switch pin formed toconnect said three terminals in pairs.

3. A switch .block comprising al main body, three spring terminals themiddle oneof which has two ends equally spaced from each other and theflanking terminals, a switch-pin guide, and a switch-pin fitting saidguide and formed to connect said three terminals in pairs.

1n Witness whereof, I, have hereunto set my hand and seal atIndianapolis, Indiana, this twentythird day of March, A. D. one thousandnine hundred and eight.

` HOMER N. MOTSINGER. [n s] Witnesses:

ARTHUR M. Hoop, l THOMAS W. vMoMn-ims.

